A cylinder chain vertical lift door

Abstract

This invention belongs to the field of lifting door technology, and specifically relates to a cylinder chain vertical lifting door, including a door frame. Two mounting frames are provided above the door frame, and double-headed cylinders are connected to the front side walls of both mounting frames. Two lifting doors are slidably disposed within the door frame. The moving ends of the double-headed cylinders are connected to chains via connecting components. This invention uses a cylinder-driven chain sprocket to achieve vertical lifting and closing of the door, replacing the traditional swing-out structure. It eliminates the need for reserved space for lateral door opening, completely solving the problem of wasted workshop space and significantly reducing factory rent and construction costs. The left and right doors can be independently controlled, offering flexible use. The lifting height can be adjusted as needed, providing strong adaptability. The overall structure is simple and reliable, easy to maintain, and does not alter the original equipment housing and heating system. It perfectly adapts to the high-temperature operating conditions of textile printing and dyeing drying and setting machines, greatly improving space utilization and production operation convenience.

Description

Technical Field

[0001] This invention belongs to the field of lifting door technology, and in particular relates to a cylinder chain vertical lifting door. Background Technology

[0002] Currently, when cleaning and maintaining textile printing and dyeing drying and setting machines, their side doors generally adopt an outward-opening method. The standard width of this type of door is 900-1500mm. Opening doors at both ends of the equipment at the same time requires a large amount of horizontal space. When multiple machines are arranged side by side in a large-scale production workshop, a large amount of dedicated door opening area needs to be reserved, resulting in a significant reduction in the effective usable area of ​​the workshop and low space utilization.

[0003] Traditional swing-type side doors have obvious drawbacks in use: the door occupies a large amount of ground space when opened, resulting in wasted factory rent and construction costs; there is no suitable and efficient opening and closing structure, making operation inconvenient and unable to match the continuous production conditions of equipment; the door's movement is monotonous, making it difficult to meet the intensive and automated production requirements of textile printing and dyeing workshops, and the existing structure can no longer adapt to the industry's development needs for high efficiency, energy saving, and space conservation.

[0004] To address this issue, a cylinder chain vertical lifting door is proposed. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a cylinder chain vertical lifting door.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cylinder chain vertical lifting door, comprising a door frame, two mounting frames above the door frame, a double-headed cylinder connected to the front side wall of each of the two mounting frames, two lifting doors slidably disposed within the door frame, a chain connected to the moving end of each double-headed cylinder via a connecting assembly, a sprocket meshing with the chain rotatably connected to the side wall of each mounting frame, and the lower end of the chain on the same double-headed cylinder connected to the same lifting door, further comprising:

[0007] A dust removal assembly, located on the rear side wall of the mounting frame, is used to clean impurities from the moving end surface of the dual-head cylinder.

[0008] In the aforementioned cylinder chain vertical lifting door, the connecting assembly includes a connecting rod disposed at the moving end of a double-headed cylinder. Connecting rings are fixedly sleeved on the rod walls of both the connecting rod and the moving end of the double-headed cylinder. Two mutually hinged clamps are sleeved on the two connecting rings. Two clamping plates are fixedly connected to the side walls of the clamps away from the hinges. A common clamping frame is sleeved on the two clamping plates. Two limiting holes are opened on the side walls of the clamping frame, and limiting pins are inserted into the limiting holes. Through-holes matching the limiting pins are opened on the side walls of the clamping plates. A common pull plate is fixedly connected to the upper ends of the two limiting pins. A common spring is fixedly connected between the pull plate and the clamping frame. The end of the connecting rod away from the double-headed cylinder is connected to the chain via a sensing component.

[0009] In the above-mentioned cylinder chain vertical lifting door, the sensing component includes a sensing cylinder fixedly connected to the end of the connecting rod away from the double-headed cylinder. A sensing frame is movably inserted into the side wall of the sensing cylinder. One end of the sensing frame located inside the sensing cylinder is connected to the sensing cylinder by a spring. A trigger switch is fixedly connected to the side wall of the sensing cylinder away from the sensing frame. One end of the sensing frame extending out of the sensing cylinder is connected to the chain.

[0010] In the aforementioned cylinder chain vertical lifting door, the dust removal assembly includes a dust removal box fixedly connected to the rear side wall of two mounting frames. The side wall of the dust removal box is connected to a dust removal pipe, and the wall of the dust removal pipe is connected to two metal pipes. The end of the metal pipe away from the dust removal pipe passes through the mounting frame and is fixedly connected to a dust removal cylinder. The dust removal cylinder is sleeved on the outside of the moving end of the double-headed cylinder. An absorption chamber is opened inside the dust removal cylinder. The metal pipe is connected to the absorption chamber. Multiple dust suction holes are opened on the side wall of the absorption chamber. Brush bristles are connected to the inner wall of the dust removal cylinder. A dust suction pump is connected to the side wall of the dust removal box, and the air inlet of the dust suction pump is connected to the dust removal box.

[0011] In the aforementioned cylinder chain vertical lifting door, the inner wall of the dust removal box is connected to a filter cover via an elastic rod. The filter cover is located outside the air inlet of the dust pump, and a pressure sensor is connected between the elastic rod and the filter cover. A telescopic cover is connected between the filter cover and the dust removal box. The air inlet of the dust pump is connected to a suction pipe. Both the suction pipe and the air inlet of the dust pump are equipped with a first control valve. The air outlet of the dust pump is connected to a backflush pipe. Both the backflush pipe and the air outlet of the dust pump are equipped with a second control valve. The end of the backflush pipe away from the dust pump is located inside the filter cover. A dust discharge port is opened on the lower side wall of the dust removal box. A baffle located outside the dust discharge port is hinged to the lower side wall of the dust removal box. The baffle and the dust removal box are connected by the same spring.

[0012] In the aforementioned cylinder chain vertical lifting door, the lower side wall of the dust removal box is connected to a winding mechanism via a bracket, and the pull rope and baffle inside the winding mechanism are connected.

[0013] In the aforementioned cylinder chain vertical lifting door, a mounting block is fixedly connected to the side wall of the lifting door near the gantry. The mounting block has a mounting groove on the side wall near the gantry. A ratchet plate is hinged to the groove wall of the mounting groove. Multiple ratchet teeth that match the ratchet plate are fixedly connected to the inner wall of the gantry. A receiving cavity is formed in the groove wall of the mounting groove. An electromagnet with opposite magnetic properties is connected between the receiving cavity and the ratchet plate. The same compression spring is connected between the ratchet plate and the mounting groove.

[0014] In the above-mentioned cylinder chain vertical lifting door, a top rod is fixedly connected to the upper side wall of the mounting groove, and the top rod is located above the ratchet plate.

[0015] Compared with existing technologies, the advantages of a cylinder chain vertical lifting door are:

[0016] 1. The system utilizes a gantry, mounting frame, double-headed cylinder, lifting door, chain, and sprocket. The cylinder-driven chain and sprocket system achieves vertical lifting and closing of the door, replacing the traditional swing-out structure. This eliminates the need for lateral door opening space, completely resolving the problem of wasted workshop space and significantly reducing factory rent and construction costs. The left and right doors can be independently controlled, offering flexible use and adjustable lifting height for strong adaptability. The overall structure is simple, reliable, and easy to maintain, without altering the original equipment housing and heating system. It perfectly adapts to the high-temperature operating conditions of textile printing and dyeing drying and setting machines, greatly improving space utilization and production convenience.

[0017] 2. The cleaning components can promptly clean impurities from the moving end of the dual-head cylinder, effectively preventing foreign objects such as dust, lint, and oil from causing piston rod scratches, seal wear, and cylinder leakage. This ensures smooth cylinder movement, stable thrust, extends the service life of the cylinder and sealing components, maintains the door lifting accuracy and operational reliability, reduces equipment failures and downtime maintenance frequency, and improves the stability and safety of the overall transmission system.

[0018] 3. Through the installation blocks, installation grooves, ratchet plates, ratchet teeth, receiving cavities, and electromagnets, the lifting door can be locked immediately in the event of accidental chain breakage. This effectively prevents the door from suddenly falling and causing equipment damage, personnel impact injuries, and other safety accidents, ensuring the personal safety of operators and the integrity of the equipment, improving the safety and stability of the device operation, and reducing safety risks at the production site. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a cylinder chain vertical lifting door provided by the present invention;

[0020] Figure 2 This is a schematic diagram showing the positional relationship of the dust removal components in a cylinder chain vertical lifting door provided by the present invention;

[0021] Figure 3 This is a schematic diagram showing the positional relationship between the cleaning cylinder and the metal pipe in a cylinder chain vertical lifting door provided by the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of the cleaning cylinder in a cylinder chain vertical lifting door provided by the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the sensing component in a cylinder chain vertical lifting door provided by the present invention;

[0024] Figure 6 This is a schematic diagram of the connecting component in a cylinder chain vertical lifting door provided by the present invention;

[0025] Figure 7 This is a schematic diagram of the internal structure of the mounting block in a cylinder chain vertical lifting door provided by the present invention;

[0026] Figure 8 This is a schematic diagram of the internal structure of the cleaning cylinder in a cylinder chain vertical lifting door provided by the present invention.

[0027] In the diagram: 1. Gantry; 2. Mounting frame; 3. Double-headed cylinder; 4. Lifting door; 5. Chain; 6. Sprocket; 7. Connecting assembly; 71. Connecting rod; 72. Connecting ring; 8. Clamp; 9. Clamping plate; 10. Clamping frame; 11. Limit pin; 12. Pull plate; 13. Sensing assembly; 131. Sensing cylinder; 132. Sensing frame; 14. Trigger switch; 15. Dust removal assembly; 151. Dust removal box; 152. 16. Cleaning pipe; 17. Metal pipe; 18. Cleaning cylinder; 19. Absorption chamber; 20. Dust pump; 21. Filter cover; 22. Telescopic cover; 23. Suction pipe; 24. First control valve; 25. Backflush pipe; 26. Second control valve; 27. Baffle; 28. Rewinding mechanism; 29. ​​Mounting block; 30. Mounting groove; 31. Ratchet; 32. Receiving chamber; 33. Electromagnet; 34. Top rod. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] like Figures 1-8As shown, a cylinder chain vertical lifting door includes a door frame 1, with two mounting frames 2 above the door frame 1. Double-headed cylinders 3 are connected to the front side walls of both mounting frames 2. Two lifting doors 4 are slidably mounted inside the door frame 1. The moving ends of the double-headed cylinders 3 are connected to chains 5 via connecting components 7. Sprockets 6, meshing with the chains 5, are rotatably connected to the side walls of the mounting frames 2. The lower ends of the chains 5 on the same double-headed cylinder 3 are connected to the same lifting door 4. The door also includes:

[0030] The dust removal component 15 is installed on the rear side wall of the mounting frame 2 and is used to clean impurities from the moving end surface of the double-headed cylinder 3.

[0031] The connecting assembly 7 includes a connecting rod 71 located at the moving end of the double-headed cylinder 3. Both the connecting rod 71 and the moving end of the double-headed cylinder 3 are fixedly fitted with connecting rings 72. Two clamps 8 are hinged to each other on the outer sleeve of the two connecting rings 72. Two clamping plates 9 are fixedly connected to the side wall of the clamps 8 away from the hinge. The same clamping frame 10 is fitted on the outer sleeve of the two clamping plates 9. Two limiting holes are opened on the side wall of the clamping frame 10, and limiting pins 11 are inserted into the limiting holes. The side wall of the clamping plates 9 is opened with a through-hole that matches the limiting pins 11. The upper ends of the two limiting pins 11 are fixedly connected to the same pull plate 12. The same spring is fixedly connected between the pull plate 12 and the clamping frame 10. The end of the connecting rod 71 away from the double-headed cylinder 3 is connected to the chain 5 through the sensing assembly 13.

[0032] The sensing assembly 13 includes a sensing cylinder 131 fixedly connected to the end of the connecting rod 71 away from the double-headed cylinder 3. A sensing frame 132 is movably inserted into the side wall of the sensing cylinder 131. One end of the sensing frame 132 located inside the sensing cylinder 131 is connected to the sensing cylinder 131 by a spring. A trigger switch 14 is fixedly connected to the side wall of the sensing cylinder 131 away from the sensing frame 132. One end of the sensing frame 132 extending out of the sensing cylinder 131 is connected to the chain 5.

[0033] The dust removal assembly 15 includes a dust removal box 151 fixedly connected to the rear side wall of two mounting frames 2. The side wall of the dust removal box 151 is connected to a dust removal pipe 152. The pipe wall of the dust removal pipe 152 is connected to two metal pipes 16. The end of the metal pipe 16 away from the dust removal pipe 152 passes through the mounting frame 2 and is fixedly connected to a dust removal cylinder 17. The dust removal cylinder 17 is sleeved on the outside of the moving end of the double-headed cylinder 3. An absorption chamber 18 is opened inside the dust removal cylinder 17. The metal pipes 16 are connected to the absorption chamber 18. Multiple dust suction holes are opened on the side wall of the absorption chamber 18. The inner wall of the dust removal cylinder 17 is connected to bristles. A dust suction pump 19 is connected to the side wall of the dust removal box 151. The air inlet of the dust suction pump 19 is connected to the dust removal box 151.

[0034] The inner wall of the dust removal box 151 is connected to a filter cover 20 via an elastic rod. The filter cover 20 is located outside the air inlet of the dust pump 19, and a pressure sensor is connected between the elastic rod and the filter cover 20. A telescopic cover 21 is connected between the filter cover 20 and the dust removal box 151. The air inlet of the dust pump 19 is connected to a suction pipe 22. Both the suction pipe 22 and the air inlet of the dust pump 19 are equipped with a first control valve 23. The air outlet of the dust pump 19 is connected to a backflush pipe 24. Both the backflush pipe 24 and the air outlet of the dust pump 19 are equipped with a second control valve 25. The end of the backflush pipe 24 away from the dust pump 19 is located inside the filter cover 20. A dust discharge port is opened on the lower side wall of the dust removal box 151. A baffle 26 located outside the dust discharge port is hinged to the lower side wall of the dust removal box 151. The same spring connects the baffle 26 and the dust removal box 151.

[0035] The lower side wall of the dust removal box 151 is connected to a winding mechanism 27 via a bracket, and the pull rope inside the winding mechanism 27 is connected to the baffle 26.

[0036] A mounting block 28 is fixedly connected to the side wall of the lifting door 4 near the door frame 1. The mounting block 28 has a mounting groove 29 on the side wall near the door frame 1. A ratchet plate 30 is hinged to the groove wall of the mounting groove 29. Multiple ratchet teeth 31 that match the ratchet plate 30 are fixedly connected to the inner wall of the door frame 1. A receiving cavity 32 is formed in the groove wall of the mounting groove 29. An electromagnet 33 with opposite magnetic properties is connected between the receiving cavity 32 and the ratchet plate 30. The same compression spring is connected between the ratchet plate 30 and the mounting groove 29.

[0037] A push rod 34 is fixedly connected to the upper side wall of the mounting groove 29, and the push rod 34 is located above the ratchet plate 30.

[0038] The operating principle of this invention is explained as follows: When it is necessary to control the lifting door 4 to rise or fall, the operator sends a signal to the controller through an external button. The controller controls the two double-headed cylinders 3 to start. The double-headed cylinders 3 drive the chain 5 to move through the connecting component 7. Under the meshing transmission of the sprocket 6, the chain 5 drives the corresponding lifting door 4 to rise or fall vertically along the door frame 1, realizing the opening and closing of the door. This vertical lifting method replaces the traditional swing structure, does not require the reservation of horizontal opening space, the left and right doors can be controlled independently, the lifting height can be adjusted as needed, the structure is simple, the maintenance is convenient, and it is suitable for the high-temperature working conditions of textile printing and dyeing drying and setting machines.

[0039] When the chain 5 breaks due to aging, corrosion, or other unexpected reasons, and the lifting door 4 shows a tendency to fall, the sensor frame 132 moves into the sensor cylinder 131 under the action of spring tension and presses the trigger switch 14. The trigger switch 14 sends a signal to the controller, and the controller immediately controls the electromagnet 33 to de-energize. The ratchet plate 30 rotates towards the ratchet tooth 31 under the action of the compression spring force and is limited to a suitable angle by the top rod 34. The ratchet plate 30 and the ratchet tooth 31 engage with each other, quickly locking the lifting door 4 to prevent the door from falling suddenly and to ensure the safety of personnel and the integrity of the equipment.

[0040] During the operation of the dual-head cylinder 3, the controller synchronously controls the dust pump 19 to work. The dust pump 19 creates a negative pressure inside the dust cleaning box 151. The brush bristles on the inner wall of the dust cleaning cylinder 17 first clean the dust, lint, oil and other impurities on the surface of the moving end of the dual-head cylinder 3. Under the action of negative pressure, the impurities enter the dust cleaning box 151 through the dust suction hole, absorption chamber 18, metal pipe 16 and dust cleaning pipe 152, and are filtered and intercepted by the filter cover 20. When the surface of the filter cover 20 is clogged due to excessive impurities, the pressure of the filter cover 20 on the elastic rod and pressure sensor increases. After the controller detects this state through the pressure sensor, it controls the winding mechanism 27 to pull the pull rope to open the baffle 26. At the same time, it switches the first control valve 23 and the second control valve 25, so that the dust pump 19 blows airflow into the filter cover 20 through the backflushing pipe 24 to clean the impurities on the surface of the filter cover 20. The impurities are discharged through the ash discharge port to avoid damage to the cylinder piston rod and seals, ensure smooth cylinder operation, extend service life, and maintain the door lifting accuracy and operational stability.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cylinder chain vertical lifting door, comprising a door frame (1), wherein two mounting frames (2) are provided above the door frame (1), characterized in that, Both mounting frames (2) are connected to a double-headed cylinder (3) on their front sidewalls. Two lifting doors (4) are slidably installed inside the gantry (1). The moving ends of the double-headed cylinders (3) are connected to chains (5) via connecting components (7). The sidewalls of the mounting frames (2) are rotatably connected to sprockets (6) that mesh with the chains (5). The lower end of the chain (5) on the same double-headed cylinder (3) is connected to the same lifting door (4). The system also includes: A dust removal assembly (15) is provided on the rear side wall of the mounting frame (2) for cleaning impurities from the moving end surface of the double-headed cylinder (3).

2. The cylinder chain vertical lifting door according to claim 1, characterized in that, The connecting assembly (7) includes a connecting rod (71) disposed at the moving end of the double-headed cylinder (3). The connecting rod (71) and the moving end of the double-headed cylinder (3) are both fixedly fitted with connecting rings (72). The two connecting rings (72) are fitted with two mutually hinged clamps (8). The side wall of the clamps (8) away from the hinge is fixedly connected with two clamping plates (9). The two clamping plates (9) are fitted with the same clamping frame (10). The side wall of the clamping frame (10) has two limiting holes, and limiting pins (11) are inserted into the limiting holes. The side wall of the clamping plate (9) has a through opening that matches the limiting pins (11). The upper ends of the two limiting pins (11) are fixedly connected with the same pull plate (12). The pull plate (12) and the clamping frame (10) are fixedly connected with the same spring. The end of the connecting rod (71) away from the double-headed cylinder (3) is connected to the chain (5) through the sensing assembly (13).

3. A cylinder chain vertical lifting door according to claim 2, characterized in that, The sensing component (13) includes a sensing cylinder (131) fixedly connected to the end of the connecting rod (71) away from the double-headed cylinder (3). A sensing frame (132) is movably inserted into the side wall of the sensing cylinder (131). One end of the sensing frame (132) located inside the sensing cylinder (131) is connected to the sensing cylinder (131) by a spring. A trigger switch (14) is fixedly connected to the side wall of the sensing cylinder (131) away from the sensing frame (132). One end of the sensing frame (132) extending out of the sensing cylinder (131) is connected to the chain (5).

4. A cylinder chain vertical lifting door according to claim 1, characterized in that, The dust removal assembly (15) includes a dust removal box (151) fixedly connected to the rear side wall of two mounting frames (2). The side wall of the dust removal box (151) is connected to a dust removal pipe (152). The pipe wall of the dust removal pipe (152) is connected to two metal pipes (16). The end of the metal pipe (16) away from the dust removal pipe (152) passes through the mounting frame (2) and is fixedly connected to a dust removal cylinder (17). The dust removal cylinder (17) is sleeved on the outside of the moving end of the double-headed cylinder (3). An absorption chamber (18) is opened inside the dust removal cylinder (17). The metal pipe (16) and the absorption chamber (18) are connected. The side wall of the absorption chamber (18) is opened with multiple dust suction holes. The inner wall of the dust removal cylinder (17) is connected to brush bristles. The side wall of the dust removal box (151) is connected to a dust suction pump (19). The air inlet of the dust suction pump (19) is connected to the dust removal box (151).

5. A cylinder chain vertical lifting door according to claim 4, characterized in that, The inner wall of the dust removal box (151) is connected to a filter cover (20) via an elastic rod. The filter cover (20) is located outside the air inlet of the dust pump (19), and a pressure sensor is connected between the elastic rod and the filter cover (20). A telescopic cover (21) is connected between the filter cover (20) and the dust removal box (151). The air inlet of the dust pump (19) is connected to a suction pipe (22). Both the suction pipe (22) and the air inlet of the dust pump (19) are equipped with a first control valve (23). The exhaust end of the vacuum pump (19) is connected to a backflush pipe (24). A second control valve (25) is provided in both the backflush pipe (24) and the exhaust end of the vacuum pump (19). The end of the backflush pipe (24) away from the vacuum pump (19) is located inside the filter cover (20). The lower side wall of the dust removal box (151) is provided with a dust discharge port. The lower side wall of the dust removal box (151) is hinged with a baffle (26) located outside the dust discharge port. The baffle (26) and the dust removal box (151) are connected by the same spring.

6. A cylinder chain vertical lifting door according to claim 5, characterized in that, The lower side wall of the dust removal box (151) is connected to a winding mechanism (27) via a bracket, and the pull rope and baffle (26) inside the winding mechanism (27) are connected.

7. A cylinder chain vertical lifting door according to claim 1, characterized in that, The lifting door (4) has a mounting block (28) fixedly connected to the side wall near the door frame (1). The mounting block (28) has a mounting groove (29) on the side wall near the door frame (1). The groove wall of the mounting groove (29) is hinged with a ratchet plate (30). The inner wall of the door frame (1) is fixedly connected with a plurality of ratchet teeth (31) that match the ratchet plate (30). The groove wall of the mounting groove (29) has a receiving cavity (32). An electromagnet (33) with opposite magnetic properties is connected between the receiving cavity (32) and the ratchet plate (30). The same compression spring is connected between the ratchet plate (30) and the mounting groove (29).

8. A cylinder chain vertical lifting door according to claim 7, characterized in that, A top rod (34) is fixedly connected to the upper side wall of the mounting groove (29), and the top rod (34) is located above the ratchet plate (30).

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